https://bugzilla.redhat.com/show_bug.cgi?id=1094664
Bug ID: 1094664
Summary: docker-io-0.10.0-2 disables access to /dev/shm
Product: Fedora
Version: 20
Component: docker-io
Assignee: [email protected]
Reporter: [email protected]
QA Contact: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected],
[email protected], [email protected], [email protected]
Description of problem:
While testing FreeIPA server and the 389 server in Docker container, I started
to see errors like Failed to create semaphore for stats file/Permission denied
with docker-io from updates-testing. Upon closer look, /dev/shm seems to be
mounted with 1755, which is different from what docker-io 0.9.1 does and what
you get on bare metal.
Version-Release number of selected component (if applicable):
docker-io-0.10.0-2.fc20.x86_64
How reproducible:
Deterministic.
Steps to Reproduce:
1. docker run -ti fedora:20 /bin/bash
2. In the container shell, run
mount | grep /dev/shm
ls -la /dev/shm
exit
3. Downgrade to docker-io-0.9.1 and repeat.
Actual results:
# docker run -ti fedora:20 /bin/bash
bash-4.2# mount | grep /dev/shm
shm on /dev/shm type tmpfs
(rw,nosuid,nodev,noexec,relatime,seclabel,size=65536k,mode=1755)
# docker run -ti fedora:20 /bin/bash
bash-4.2# ls -la /dev/shm
total 4
drwxrwxrwt. 2 root root 40 May 6 08:06 .
drwxr-xr-x. 4 root root 4096 May 6 08:06 ..
bash-4.2# exit
# rpm -q docker-io
docker-io-0.9.1-1.fc20.x86_64
# yum downgrade docker-io -y
[...]
# rpm -q docker-io
docker-io-0.9.1-1.fc20.x86_64
# docker run -ti fedora:20 /bin/bash
bash-4.2# mount | grep /dev/shm
shm on /dev/shm type tmpfs
(rw,nosuid,nodev,noexec,relatime,seclabel,size=65536k)
bash-4.2# ls -la /dev/shm
total 4
drwxrwxrwt. 2 root root 40 May 6 09:16 .
drwxr-xr-x. 4 root root 4096 May 6 09:16 ..
bash-4.2# exit
exit
#
Expected results:
Permissions on /dev/shm the same as on docker-io-0.9.1.
Additional info:
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